Consider the following circuit as shown in figure below:
Assume op-amp to be ideal and knee voltage of diode = 0.7 V and neglect reverse saturation current of diode. Find the value of current ID through diode such that op-amp operates in saturation region.
Assume that the Op-amps are ideal then find Vo as a function of V1 and V2.
The given circuitry produces triangular waveforms as output voltage. Calculate the value of Vramp if R1=R2=10kΩ and R3=20kΩ.Assume +Vsat=+12V. Also calculate the peak to peak amplitude of the triangular waveforms. (2 marks)
The approximate transfer characteristic for the circuit shown below with an ideal operational amplifier and diode will be
The op-amp shown in the figure has a finite gain A = 1000 and an infinite input resistance. A step voltage Vi = 1 mV is applied at the time t = 0 as shown. Assuming that the operational amplifier is not saturated, the time constant (in millisecond) of the output voltage V0 is
Consider the circuit shown in the figure. In this circuit R = 1 kΩ and C = 1 μF. The input voltage is sinusoidal with a frequency of 50 Hz, represented as a phasor with magnitude Vi and phase angle 0 radian as shown in the figure. The output voltage is represented as a phasor with magnitude V0 and phase angle δ radian. What is the value of the output phase angle δ (in radian) relative to the phase angle of the input voltage?